In afternoon trading in New York, the Dow Jones Industrial Average fell 0.31 per cent. The Nasdaq Composite Index rose 0.22 per cent. The S&P 500 was steady at 1,519.46, after earlier climbing as high as 1,524.69, the highest since November 2007.
"I was expecting a 12-15 per cent return on the S&P for the whole year of 2013, and we have done about half of that in just 5-6 weeks," Jack De Gan, principal at Harbor Advisory in Portsmouth, New Hampshire, told Reuters.
"We will hit resistance, but the fundamentals and micro picture are looking good, so if there is a correction it's going to be a brief one."
US retail sales advanced 0.1 per cent last month, following a 0.5 per cent increase in December, according to a Commerce Department report. Economists blame higher taxes in January for the tepid gain.
"We are starting to see the impact of higher taxes, but we have a positive wealth effect from increasing house prices and a boost from equities," Robert Dye, chief economist at Comerica in Dallas, told Reuters. "My expectation is that consumers are able to continue to increase spending but only moderately."
Among the gainers today were shares of General Electric, last up 3.3 per cent, and Comcast, last up 4.3 per cent, after GE agreed to sell its remaining stake in NBC Universal to Comcast for US$16.7 billion. GE announced plans to return US$18 billion to shareholders as it continues to refocus on its core industrial businesses.
In Europe, the Stoxx 600 Index finished the day with a 0.4 per cent gain from the previous close. Germany's DAX climbed 0.7 per cent, while the UK's FTSE 100 and France's CAC 40 both rose 0.3 per cent.
The recent round of corporate earnings is bolstering optimism that the region's economy is showing signs of recovery. About 54 per cent of western European companies that have reported earnings since January 8 surpassed analysts' projections for profit, according to Bloomberg data, while 51 per cent beat revenue forecasts.
The pace of production rose at a faster clip than expected at the end of 2012. Factory production in the euro zone increased 0.7 per cent in December, after dropping a revised 0.7 per cent in November, according to data by the European Union's statistics office released today.
In London, Bank of England chief Mervyn King said there was little else that the central bank could do to bolster growth. He also said the bank doesn't expect inflation to reach its target until 2016.